SN4 ""

No	Pattern	Freq
1	[adj] of which had been	69
2	[det] of which had been	52
3	[noun] of which had been	46
4	[noun sg] of which had been	32
5	[noun pl] of which had been	14
6	some of which had been	14
7	some of which had been	14
8	[num] of which had been	14
9	all of which had been	13
10	all of which had been	13
11	both of which had been	11
12	both of which had been	11
13	one of which had been	7
14	one of which had been	7
15	most of which had been	6
16	most of which had been	6
17	of [noun] which had been	95
18	of [noun sg] which had been	53
19	of [noun pl] which had been	32
20	of [noun prp] which had been	9
21	of which [pron] had been	33
22	of which [pers pn] had been	30
23	of which [noun] had been	19
24	of which he had been	19
25	of which he had been	19
26	of which [noun prp] had been	14
27	of which [adj] had been	5
28	of which had [adv] been	17
29	of which had [adv] been	14
30	of which had been [verb]	94